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How to Choose the Best Grow Tent Companion Plants

grow tent companion plants

Grow Tent Companion Plants: An

Growing plants indoors is an increasingly popular way to ensure a year-round supply of fresh produce. Grow tents are a great way to create a controlled environment for growing plants, but they can also pose some challenges. One of the most important factors to consider when growing plants in a grow tent is selecting the right companion plants. Companion plants are beneficial for various reasons such as pest control, pollination, and soil health. In this blog post, we'll explore how to choose the best grow tent companion plants for your indoor garden.

Factors to Consider When Choosing Grow Tent Companion Plants

When choosing companion plants for your grow tent, there are several factors to consider. These include:

Planting Space

The size of your grow tent will determine how many plants you can grow and which plants are compatible. Be sure to research each plant's spacing requirements before selecting them as companion plants.


It's essential to consider the lifecycle of your chosen plants since some plants have longer lifecycles than others. You don't want one plant to outgrow another or to harvest one plant while another is just ing its growth cycle.

Light Requirements

Different plants require different levels of light, so it's crucial to select companion plants with similar light requirements. This will ensure that all plants in your grow tent receive the appropriate amount of light.

Water Needs

Plants have varied water needs, and it's essential to pair plants with similar watering requirements. Some plants need more water, while others thrive in drier conditions.

Nutrient Requirements

Certain plants require more nutrients than others, and it's crucial to choose companion plants with similar nutrient requirements. This will help ensure that all plants receive adequate nutrients.

Benefits of Grow Tent Companion Plants

Companion planting has several benefits for indoor gardening in a grow tent. Here are some of the advantages:

Pest Control

Companion planting can help control pests by repelling harmful insects, attracting beneficial insects, or masking the scent of the primary plant, making it difficult for pests to locate it.


Some plants rely on pollinators to produce fruit and seeds, and companion plants can attract bees, butterflies, and other pollinators that aid in the pollination process.

Soil Health

Companion plants can improve soil health by fixing nitrogen, aerating the soil, and adding organic matter to the soil.

Best Grow Tent Companion Plants

Now that we've established the factors to consider when choosing companion plants let's look at some of the best options for your grow tent.


Basil is an excellent companion plant for most herbs and vegetables because it repels flies, mosquitoes, and aphids. It also attracts bees and other pollinators, helping to improve pollination.


Mint is a hardy herb that adds flavor to many dishes. It repels ants, aphids, and cabbage moths, making it an excellent companion plant for brassicas, tomatoes, and peppers.


Marigolds are known for their bright orange and yellow blooms and are often planted as ornamental plants. They also have strong insect-repelling properties, particularly against nematodes, which are a common problem for tomatoes and peppers.


Chamomile is an herb that has a calming effect on humans and animals. It also attracts beneficial insects like hoverflies, which help control aphids and other pests.


Lavender is a fragrant herb that repels fleas, moths, and mosquitoes. It's also an excellent companion plant for strawberries, which benefit from the lavender's ability to attract bees and other pollinators.

Companion Planting Chart

Here's a companion planting chart that you can use as a reference when selecting plants for your grow tent:

Primary PlantCompanion Plant
TomatoesBasil, Marigold, Nasturtium, Borage, Carrots
PeppersBasil, Marigold, Oregano, Rosemary, Spinach
CucumbersSunflowers, Radish, Dill, Nasturtium, Beans
LettuceChives, Garlic, Thyme, Carrots, Radish
StrawberriesLavender, Sage, Thyme, Borage, Spinach
HerbsDill, Chamomile, Fennel, Lavender, Mint

Frequently Asked Questions (FAQs)

Q: Can I grow any plant with any other plant in my grow tent?

A: No, it's essential to consider each plant's space, light, water, and nutrient requirements before pairing them together.

Q: How many companion plants should I have in my grow tent?

A: This will depend on the size of your grow tent and the number of primary plants you're growing. As a general rule, aim for a 1:1 ratio of primary plants to companion plants.

Q: Can I use synthetic pesticides with companion planting?

A: We recommend avoiding synthetic pesticides, as they can harm beneficial insects and disrupt the balance of your indoor garden's ecosystem.

Q: How often should I water my grow tent companion plants?

A: This will depend on each plant's specific water needs. Be sure to research each plant's requirements before watering.

Q: Do companion plants require the same amount of light as primary plants?

A: Companion plants should have similar light requirements as primary plants to ensure that all plants receive the appropriate amount of light.

In choosing the right companion plants for your grow tent is essential for maintaining a healthy and productive indoor garden. Be sure to consider each plant's space, lifecycle, light, water, and nutrient requirements when selecting companion plants. Remember, companion planting has several benefits, including pest control, pollination, and soil health. Use the companion planting chart provided as a reference when selecting plants, and avoid synthetic pesticides. With the right companion plants, you can enjoy a bountiful harvest from your indoor garden!

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